Universal Heavy Duty Collection Commercial Natural Gas Ultra Low Nox Water Heater with 75 Gallon Tank
Need a ultra low nitrous oxide solution? Rated for less than 14 ng/J this unit features an ultra low NOx burner. Part of the Universal Heavy Duty collection of water heaters, this unit is an excellent choice for commercial retrofits. Its compact size and multiple water connections simplify installations. Need installation flexibility? This water heater has water inlets and outlets on top, front, and rear.
Minimize Down Time
The stainless steel burner assembly slides out like a drawer for quick inspection and maintenance. Factory installed brass drain valve features full-port, full flow which allows faster draining and servicing. Multiple magnesium anode rods ensure corrosion resistance for longer tank life.
The Direct Spark-to-Pilot ignition is designed to save energy and only ignites the pilot when there is a call for heat.
Patented multi-flue design using a proprietary steel formulation, combined with two coats of porcelain enamel, and the results equal a superior heat exchanger.
Rheem's exclusive diagnostic system. It watches over the water heater and verifies system operation sequence by sequence via LED lights.
Ultra Low NOx Burner
Need less than 14 ng/J performance? This burner delivers. The power assist burner design incorporates stainless steel multi-port burner tubes for long term ultra low NOx performance. A sight glass allows for burner observation. The entire design is removable and is highly resistant to the effects of negative air pressure common in modern commercial buildings.
- Tank Capacity: 75 Gallons
- Thermal Efficiency: 80%
- First Hour Rating: 174 gallons
- Recovery in GPH at 60 degree rise: 202
- Recovery in GPH at 70 degree rise: 173
- Recovery in GPH at 80 degree rise: 152
- Recovery in GPH at 90 degree rise: 135
- Recovery in GPH at 100 degree rise: 121
- Max BTU Input: 125000
- Warranty: 3 Year Limited Tank
- Altitude Certification: 2000 ft. above sea level
Rheem has been manufacturing water heaters since the 1930's, with coast to coast distribution by 1936. Their product offerings cover commercial and residential heating, cooling, solar water heating systems, conventional storage-style water heaters, tankless water heaters, replacement parts and accessories. Rheem's manufacturing facilities are ISO 9001 certified, with four facilities in the United States. Choose an industry leader that is respected for reliability. Choose Rheem.
Additional Rheem Links
Our SKU: Rheem GNU75-125
This product is listed under the following manufacturer number(s):
- Rheem GNU75-125
*Denotes a finish or option that has been discontinued
Rheem GNU75-125 Product Specifications
|First Hour Rating||174|
|Fuel Type||Natural Gas|
|Max BTU Input||125000|
|Minimum Clearance Rear||2|
|Minimum Clearance Side||2|
|Minimum Clearance Top||12|
|Minutes to Recover Contents||37|
|Series||Universal Heavy Duty|
|Warranty||3 Year Limited Tank|
|Water Pressure (Max)||150|